
#https://movie.douban.com/j/chart/top_list?type=5&interval_id=100:90&action=&
# start=0&limit=20
#https://movie.douban.com/j/chart/top_list?type=5&interval_id=100:90&action=&
# start=20&limit=20
#https://movie.douban.com/j/chart/top_list?type=5&interval_id=100:90&action=&
# start=40&limit=20
#https://movie.douban.com/j/chart/top_list?type=5&interval_id=100:90&action=&
# start=60&limit=20
#https://movie.douban.com/j/chart/top_list?type=5&interval_id=100:90&action=&
# start=80&limit=20
import urllib.parse
import urllib.request
#下载豆瓣电影前十页数据
def create_request(page):
    base_url ='https://movie.douban.com/j/chart/top_list?type=5&interval_id=100:90&action=&'

    data = {
        'start':(page-1)*20,
        'limit' :20
    }
    data = urllib.parse.urlencode(data)
    url = base_url+data
    headers = {'User-Agent':
                   'Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:96.0) Gecko/20100101 Firefox/96.0'}

    request = urllib.request.Request(url=url,headers=headers)
    return request

def get_content(request):
    response = urllib.request.urlopen(request)
    content = response.read().decode('utf-8')
    return content

def down_load(page,content):
    with open('douban_'+str(page)+'.json','w',encoding='utf-8')as fp:
        fp.write(content)

if __name__ == '__main__':
    start_page = int(input('请输入起始页码'))
    end_page = int(input('请输入结束的页码'))

    for page in range(start_page,end_page+1):
        request = create_request(page)
        #获取响应数据
        content = get_content(request)
        #下载
        down_load(page,content)